Updated both FrequencyAnalyzer and Spectrogram to use
light gray background (bg-muted/30) that adapts to the theme:
- Wrapped canvas in bg-muted/30 container
- FrequencyAnalyzer reads parent background color for canvas fill
- Spectrogram interpolates from background color to blue for low values
- Both analyzers now work properly in light and dark themes
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
Added real-time audio analysis visualizations to master column:
- FrequencyAnalyzer component with FFT bar display
- Canvas-based rendering with requestAnimationFrame
- Color gradient from cyan to green based on frequency
- Frequency axis labels (20Hz, 1kHz, 20kHz)
- Spectrogram component with time-frequency waterfall display
- Scrolling visualization with ImageData pixel manipulation
- Color mapping: black → blue → cyan → green → yellow → red
- Vertical frequency axis with labels
- Master column redesign
- Fixed width layout (280px)
- Toggle buttons to switch between FFT and Spectrum views
- Integrated above master controls with 300px minimum height
- Exposed masterAnalyser from useMultiTrackPlayer hook
- Analyser node now accessible to visualization components
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
